US20170268680A1 - Vacuum valve - Google Patents
Vacuum valve Download PDFInfo
- Publication number
- US20170268680A1 US20170268680A1 US15/528,851 US201515528851A US2017268680A1 US 20170268680 A1 US20170268680 A1 US 20170268680A1 US 201515528851 A US201515528851 A US 201515528851A US 2017268680 A1 US2017268680 A1 US 2017268680A1
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- valve
- motion
- roller
- groove section
- closing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/425—Attachment of the seat to the housing by plastical deformation, e.g. valve seat or housing being plastically deformed during mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
- F16K3/184—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of cams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Definitions
- the present invention relates to a vacuum valve. More particularly, the present invention relates to a vacuum valve capable of improving product performance of a packing ring to extend a replacement period of the packing ring.
- an opening and closing driving guide groove including a protruding groove section and first and second inclined groove sections is defined in each of both side surfaces of a driving block, and an L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on an L-motion block, when the L-motion roller is disposed at an end of the first inclined groove section, one side surface of a valve blade closes an inlet, and when the L-motion roller is disposed at an end of the second inclined groove section, one side surface of the valve blade closely contacts an inner surface of the housing. Accordingly, the packing ring provided on a closing surface of the valve blade is fundamentally blocked from contacting air or fluid, and thus the product performance of the packing ring is improved to extend the replacement period of the packing ring.
- a product having high reliability and a high degree of completion may be manufactured in a state in which the semiconductor device is completely prevented from contacting foreign substances contained in the air, i.e., a vacuum state.
- a vacuum pump suctioning the air and other gases in a process chamber is installed outside the process chamber to maintain the vacuum state in the process chamber for manufacturing the semiconductor device.
- the process chamber may always maintain a clean vacuum state therein.
- a gate valve disclosed in the below patent document 1 includes: a valve box; a valve disc disposed in the valve box to face and contact a valve sheet disposed in the valve box; a valve rod sealingly protruding to perform vertical movement and inclined movement by interposing a bellows between the inside and the outside of the valve box connected to the valve disc; and a movable unit disposed outside the valve box and allowing the valve disc to move between positions facing or not facing the valve sheet by interposing the valve rod and allowing the valve rod to perform the inclined movement so that the valve disc presses the valve sheet after the valve disc is disposed on the position spaced from and facing the valve sheet.
- the movable unit includes: a roller disposed on each of one side and the other side of each of a piston cylinder device, a piston rod of the piston cylinder device, and the valve rod to connect each other; a spring restraining to allow a lengthy inclined hole coupled to the roller, the piston rod, and the valve rod to be spaced apart from each other in a shaft direction; and a guide provided on a cylinder of the piston cylinder device to guide the vertical movement and the inclined movement of the valve rod.
- the valve rod is inclined by interposing the roller and the lengthy inclined hole, and the valve disc presses the valve sheet.
- impurities generated by wear between components is not generated in the valve box.
- the present invention is derived to resolve the above-described problems and it is an object of the present invention is to provide a vacuum valve capable of improving product performance of a packing ring to extend a replacement period of the packing ring.
- an opening and closing driving guide groove including a protruding groove section and first and second inclined groove sections is defined in each of both side surfaces of a driving block, and an L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on an L-motion block, when the L-motion roller is disposed at an end of the first inclined groove section, one side surface of a valve blade closes an inlet, and when the L-motion roller is disposed at an end of the second inclined groove section, one side surface of the valve blade closely contacts an inner surface of the housing. Accordingly, the packing ring provided on a closing surface of the valve blade is fundamentally blocked from contacting air or fluid, and thus the product performance of the packing ring is improved to extend the replacement period of the packing ring.
- An embodiment of the inventive concept provides a vacuum valve 1 including: a valve housing 100 including a fluid flow hole ( 101 ) defined therein and on which an inlet 110 through which fluid is introduced and an outlet 120 through which fluid is discharged are provided; a valve blade 200 disposed in the valve housing 100 to open and close the inlet 110 ; a valve rod 300 connected to the valve blade 200 and including a connecting projection 310 protruding from an upper portion thereof; an L-motion block 400 connected to the connecting projection 310 and including stroke rollers 410 respectively provided on both lower side surfaces thereof and L-motion rollers 420 respectively provided on both upper side surfaces thereof; a driving block 500 connected to the L-motion block 400 and including opening and closing driving guide grooves 510 respectively defined in both side surfaces thereof so that the L-motion rollers 420 are respectively inserted therein to vertically move; a spring pin 600 provided on one surface of the driving block 500 ; an elastic member 700 provided between the spring pin 600 and each of the L-motion rollers 420 ; a guide housing 800 coupled to an upper portion
- each of the stroke rollers 410 is more biased to a closing direction C than the L-motion roller 420 .
- valve blade 200 is inclined to an opening direction O with respect to the stroke roller 410 .
- valve blade 200 moves to the closing direction C with respect to the stroke roller 410 to close the inlet 110 .
- valve blade 200 moves to the closing direction C with respect to the stroke roller 410 to closely contact an inner surface ( 102 ) of the housing ( 100 ).
- the present invention is derived to resolve the above-described problems and it is an object of the present invention is to provide the vacuum valve,
- the opening and closing driving guide groove including the protruding groove section and the first and second inclined groove sections is defined in each of the both side surfaces of the driving block, and the L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on the L-motion block, when the L-motion roller is disposed at the end of the first inclined groove section, one side surface of the valve blade closes the inlet, and when the L-motion roller is disposed at the end of the second inclined groove section, one side surface of the valve blade closely contacts the inner surface of the housing.
- the packing ring provided on a closing surface of the valve blade is fundamentally blocked from contacting air or fluid, and thus the product performance of the packing ring is improved to extend the replacement period of the packing ring.
- FIG. 1 is a perspective view illustrating an overall appearance of a vacuum valve according to a preferred embodiment of the present invention.
- FIG. 2 is a coupling state view illustrating a state in which components provided in a guide housing in a configuration of the vacuum valve according to the preferred embodiment of the present invention are coupled.
- FIG. 3 is an exploded perspective view illustrating a state in which the vacuum valve according to the preferred embodiment of the present invention is exploded.
- FIG. 4 is a coupling state view illustrating a state in which components provided in the guide housing in the configuration of the vacuum valve according to the preferred embodiment of the present invention are coupled.
- FIG. 5 is a plan view illustrating a driving block in the configuration of the vacuum valve according to the preferred embodiment of the present invention is closed.
- FIGS. 6 and 7 are operation state views illustrating a state in which the inlet among the configuration of the vacuum valve according to the preferred embodiment of the present invention is being closed.
- FIGS. 8 and 9 are operation state views illustrating a state in which the inlet among the configuration of the vacuum valve according to the preferred embodiment of the present invention is being opened.
- FIG. 10 is an exploded perspective view illustrating a state in which a valve housing and a valve blade clean guider in the configuration of the vacuum valve according to the preferred embodiment of the present invention are being coupled.
- FIG. 11 is a partial cross-sectional view illustrating a cross-section of the valve housing and the valve blade clean guider in the configuration of the vacuum valve according to the preferred embodiment of the present invention.
- the present invention includes a valve housing 100 , a valve blade 200 , a valve rod 300 , an L-motion block 400 , a driving block 500 , a guide housing 800 , and a cylinder 900 .
- FIGS. 2, 4, 6, 7, 8, and 9 Before describing the present invention, as illustrated in FIGS. 2, 4, 6, 7, 8, and 9 , it is noted that a front portion or a side portion of the guide housing 800 is not illustrated so that configurations of a bellows 320 , the L-motion block 400 , and the driving block 500 , which are elements disposed therein, are clearly understood.
- shapes of the valve housing 100 , the bellows 320 , the driving block 500 , and the cylinder 900 are expressed as dotted lines to clearly express an operation state of the present invention.
- a left side of the drawing is set as a closing direction C, and a right side thereof is set as an opening direction O.
- valve housing 100 As illustrated in FIG. 1 or 3 , the valve housing 100 is disposed between a processing chamber (not shown) and a vacuum pump (not shown) and on which an inlet 110 through which fluid is introduced and an outlet 120 through which fluid is discharged are provided.
- valve blade 200 As illustrated in FIG. 3 or 4 , the valve blade 200 is disposed in a fluid flow hole 101 to open and close the inlet 110 . According to vertical movement of a piston 910 that will be described later, as a closing surface 201 of the valve blade 200 closely contacts a valve sheet 111 provided around an end of the inlet 110 , the valve blade 200 may close or open the inlet 110 .
- valve blade 200 is configured such that the closing surface 201 of the valve blade 200 closely contacts an inner surface 102 of the valve housing 100 while the inlet 110 is opened, a packing ring 210 provided on the closing surface 201 may not be exposed on the fluid flow hole 101 to increase tightness of sealing, thereby fundamentally blocking the packing ring 210 from contacting air and fluid.
- valve rod 300 As illustrated in FIG. 3 , the valve rod 300 having an upper portion on which a connecting projection 310 is provided to be connected to the L-motion block 400 that will be described later and a lower portion coupled to the valve blade 200 .
- the valve rod 300 may vertically and horizontally move according to a position of an L-motion roller 420 of the L-motion block 400 , which will be described later, seated on an opening and closing driving guide groove 510 of the driving block 500 that will be described later.
- the bellows 320 maintaining air-tightness and surrounding the valve rod 300 may be provided between the valve housing 100 and the L-motion block 400 to guide the vertical movement of the L-motion block 400 .
- bellows 320 serves to separate the valve rod 300 from the guide housing 800 that will be described later, when the inlet 110 is opened, air and fluid are blocked from being introduced into the guide housing 800 through the inlet 110 .
- the L-motion block 400 has a reverse T shape having a lower portion coupled to the valve rod 300 and an upper portion connected to the driving block 500 .
- the L-motion block 400 includes a stroke roller 410 and an L-motion roller 420 .
- the stroke roller 410 is rotatably installed on both lower side surfaces of the L-motion block 400 and guides the vertical movement of the L-motion block 400 during an operation process of the present invention.
- the stroke roller 410 is more biased to the closing direction C than the L-motion roller 420 .
- the valve rod 300 is inclined, and when the L-motion roller 420 is disposed on each of ends 512 a and 513 a of first and second inclined groove sections 512 and 513 inclined to the opening direction O, which will be described later, as the valve rod 300 vertically stands, the stroke roller 410 may serve to smoothly perform an opening and closing operation of the inlet 110 and a closely contacting operation of the inner surface 102 of the valve housing 100 .
- the stroke roller 410 may serve as a central shaft preventing a lower portion of the L-motion block 400 from horizontally moving by a stroke roller rail groove 810 of the guide housing 800 , which will be described later and into which the stroke roller 410 is inserted, and allow only an upper portion of the L-motion block 400 to horizontally move.
- the L-motion roller 420 is rotatably installed on both upper side surfaces of the L-motion block 400 .
- the L-motion roller 420 is seated on the opening and closing driving guide groove 510 and allows the valve rod 300 to move in the closing direction C or the opening direction O according to a position of the vertical movement thereof.
- the driving block 500 As illustrated in FIG. 2 or 3 , the driving block 500 has an inside into which the upper portion of the L-motion block 400 is inserted and an upper portion connected to the piston 910 .
- the driving block 500 includes the opening and closing driving groove 510 and a guide roller 520 .
- the opening and closing driving groove 510 is defined in each of both sides of the driving block 500 and in which the L-motion roller 420 is seated.
- the opening and closing driving groove 510 includes a protruding groove section 511 , a first inclined groove section 512 , and a second inclined groove section 512 .
- the protruding groove section 511 protrudes to the closing direction C.
- the valve blade 200 may maintain a state inclined to the opening direction O with respect to the stroke roller 410 .
- the first inclined groove section 512 is gradually inclined to the opening direction O as upward from the protruding groove section 511 .
- the valve blade 200 may move to the closing direction C with respect to the stroke roller 410 to close the inlet 110 .
- the second inclined groove section 513 is gradually inclined to the opening direction O as downward from the protruding groove section 511 .
- the valve blade 200 may move to the closing direction C with respect to the stroke roller 410 to closely contact the inner surface 102 of the housing 100 .
- the guide roller 520 is rotatably installed on each of both upper side surfaces of the driving block 500 .
- two or more guide rollers 520 are desirably provided so that the driving block 500 only vertically operates and does not horizontally move.
- the guide roller 520 may guide vertical movement of the driving block 500 during the operation process of the present invention.
- an elastic member 700 providing elastic force is desirably disposed between the stroke roller 410 seated on the opening and closing driving guide groove 510 and a spring pin 600 disposed on one surface of the driving block 500 .
- the elastic member 700 serves to maintain a state in which the L-motion roller 420 is inserted into the protruding groove section 511 until the stroke roller 410 moves along the stroke roller rail groove 810 by the vertical movement of the piston 910 and reached to a lower end 810 a or an upper end 810 b of the stroke roller rail groove to complete the vertical movement of the L-motion block 400 .
- the elastic member 700 allows the driving block 500 to vertically move so that the L-motion roller 420 is disposed on the end 512 a of the first inclined groove section 512 or the end 513 a of the second inclined groove section 513 while elastically deformed due to pressure of the piston 910 that continuously and vertically moves even after the stroke roller 410 is reached to the lower end 810 a or the upper end 810 b of the stroke roller rail groove 810 .
- the elastic member 700 may help the smooth operation of present invention, appropriately to the intention of the present invention.
- the guide housing 800 is coupled to the upper portion of the valve housing 100 to protect and accommodate driving elements such as the L-motion block 400 and the driving block 500 .
- a stroke roller rail groove 810 recessed so that the stroke roller 410 is inserted to move therein and a guide roller rail groove 820 recessed so that the guide roller 52 is inserted to move therein are defined in both inner surfaces of the guide housing 800 , respectively.
- the cylinder 900 is coupled to the upper portion of the guide housing 800 .
- the cylinder 900 is connected to the driving block 500 protruding to be connected to the driving block 500 while maintaining sealing between the inside and the outside of the cylinder 900 and includes the piston 910 vertically moving by hydraulic pressure.
- FIGS. 6 to 9 an operation state of the vacuum valve 1 according to a preferred embodiment of the present invention will be described.
- FIGS. 6 and 7 are operation state views illustrating a state in which the inlet 110 in the configuration of the vacuum valve 1 according to the preferred embodiment of the present invention is being closed
- FIGS. 8 and 9 are operation state views illustrating a state in which the inlet 110 in the configuration of the vacuum valve 1 according to the preferred embodiment of the present invention is being opened.
- the inlet 110 maintains a closing state in which the closing surface 201 of the valve blade 200 closely contacts the valve sheet 11 provided around the end side of the inlet 110 .
- the stroke roller 410 is disposed on the lower end 810 a of the stroke roller rail groove 810
- the L-motion roller L-motion roller 420 is disposed on the end 512 a of the first inclined groove section 512
- the elastic member 700 connected between the L-motion roller 420 and the spring pin 600 maintains a downward tensile state.
- the bellows 320 is compressed because the descending of the piston 910 is completed.
- valve rod 300 horizontally moves to the opening direction O with respect to the stroke roller 410 and is changed from a standing state to an inclined state, and at the same time, as the valve blade 200 closely contacting the valve sheet 111 horizontally moves together with the valve rod 300 , the inlet 110 is opened.
- valve blade 200 As the valve rod 300 ascends, the valve blade 200 is deviated from a horizontal path of the inlet 110 and the outlet 120 and disposed on an upper portion of the fluid flow hole 101 , and thus the inlet 110 is completely opened.
- the stroke roller 410 is disposed on the upper end 810 a of the stroke rail groove 810 .
- the driving block 500 ascends to move the L-motion roller 420 from the protruding groove section 511 to the second inclined groove section 513 .
- the elastic member 700 connected between the L-motion roller 420 and the spring pin 600 maintains an upward tensile state due to the ascending of the driving block 500 .
- the valve rod 300 horizontally moves to the closing direction C with respect to the stroke roller 410 and is changed from the inclined state to the standing state, and at the same time, as the L-motion roller 420 horizontally moves together with the valve rod 300 at a position deviated from the horizontal path of the inlet 110 and the outlet 120 , the closing surface 201 of the valve blade 200 and the inner surface 102 of the valve housing 100 closely contact each other.
- the packing ring 210 may be fundamentally prevented from contacting the air and the fluid to improve product performance of the packing ring 210 and extend a replacement period of the packing ring 210 .
- a process of closing the inlet 110 is performed in a reverse order of the above-described process of opening the inlet 110 .
- the coupling hole 130 perforated in a side surface, in which the inlet 110 is defined, of the valve housing 100 is provided, and the valve blade clean guider 1000 coupled to the coupling hole 130 is provided.
- valve blade 200 and the packing ring 210 may extend in product lifecycle.
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
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- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
A vacuum valve improving product performance of a packing ring to extend a replacement period of the packing ring is disclosed. As an opening and closing driving guide groove including a protruding groove section and first and second inclined groove sections is defined in each of both side surfaces of a driving block, and an L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on an L-motion block, when the L-motion roller is disposed at an end of the first inclined groove section, one side surface of a valve blade closes an inlet, and when the L-motion roller is disposed at an end of the second inclined groove section, one side surface of the valve blade closely contacts an inner surface of the housing. The packing ring provided on a closing surface of the valve blade is blocked from contacting air or fluid.
Description
- The present invention relates to a vacuum valve. More particularly, the present invention relates to a vacuum valve capable of improving product performance of a packing ring to extend a replacement period of the packing ring. Here, as an opening and closing driving guide groove including a protruding groove section and first and second inclined groove sections is defined in each of both side surfaces of a driving block, and an L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on an L-motion block, when the L-motion roller is disposed at an end of the first inclined groove section, one side surface of a valve blade closes an inlet, and when the L-motion roller is disposed at an end of the second inclined groove section, one side surface of the valve blade closely contacts an inner surface of the housing. Accordingly, the packing ring provided on a closing surface of the valve blade is fundamentally blocked from contacting air or fluid, and thus the product performance of the packing ring is improved to extend the replacement period of the packing ring.
- In general, since a semiconductor manufacturing process for manufacturing a semiconductor device requires a high degree of precision, a high degree of cleanliness and a special manufacturing technique.
- Due to the above-mentioned reason, a product having high reliability and a high degree of completion may be manufactured in a state in which the semiconductor device is completely prevented from contacting foreign substances contained in the air, i.e., a vacuum state.
- Meanwhile, a vacuum pump suctioning the air and other gases in a process chamber is installed outside the process chamber to maintain the vacuum state in the process chamber for manufacturing the semiconductor device.
- Also, as a vacuum valve is installed between the process chamber and the vacuum pump, and the vacuum valve is opened to discharge the air and other gasses in the process chamber and closed to maintain the vacuum state in the process chamber, the process chamber may always maintain a clean vacuum state therein.
- A gate valve disclosed in the below patent document 1 (Korean Registered Patent No. 10-0338164) includes: a valve box; a valve disc disposed in the valve box to face and contact a valve sheet disposed in the valve box; a valve rod sealingly protruding to perform vertical movement and inclined movement by interposing a bellows between the inside and the outside of the valve box connected to the valve disc; and a movable unit disposed outside the valve box and allowing the valve disc to move between positions facing or not facing the valve sheet by interposing the valve rod and allowing the valve rod to perform the inclined movement so that the valve disc presses the valve sheet after the valve disc is disposed on the position spaced from and facing the valve sheet. Here, the movable unit includes: a roller disposed on each of one side and the other side of each of a piston cylinder device, a piston rod of the piston cylinder device, and the valve rod to connect each other; a spring restraining to allow a lengthy inclined hole coupled to the roller, the piston rod, and the valve rod to be spaced apart from each other in a shaft direction; and a guide provided on a cylinder of the piston cylinder device to guide the vertical movement and the inclined movement of the valve rod. When the piston rod is pressed by the piston cylinder device so that the piston rod approaches the valve rod, the valve rod is inclined by interposing the roller and the lengthy inclined hole, and the valve disc presses the valve sheet. In addition, since all mechanical components for pressing the valve disc with respect to the valve sheet are not disposed in the valve box, impurities generated by wear between components is not generated in the valve box.
- However, when the valve rod vertically moves so that the valve disc is spaced apart from the valve sheet to open the valve from a state in which the valve disc presses the valve sheet to close the valve, since a front portion of the valve disc is being exposed to an inner space of the valve sheet, the air and the other gases contact an O-ring made of an elastic material and provided on the front portion of the valve disc while the air and the other gases moves inside the valve sheet, and thus the O-ring is corroded and rapidly deformed to shorten a replacement period of the O-ring.
- The present invention is derived to resolve the above-described problems and it is an object of the present invention is to provide a vacuum valve capable of improving product performance of a packing ring to extend a replacement period of the packing ring. Here, as an opening and closing driving guide groove including a protruding groove section and first and second inclined groove sections is defined in each of both side surfaces of a driving block, and an L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on an L-motion block, when the L-motion roller is disposed at an end of the first inclined groove section, one side surface of a valve blade closes an inlet, and when the L-motion roller is disposed at an end of the second inclined groove section, one side surface of the valve blade closely contacts an inner surface of the housing. Accordingly, the packing ring provided on a closing surface of the valve blade is fundamentally blocked from contacting air or fluid, and thus the product performance of the packing ring is improved to extend the replacement period of the packing ring.
- An embodiment of the inventive concept provides a
vacuum valve 1 including: avalve housing 100 including a fluid flow hole (101) defined therein and on which aninlet 110 through which fluid is introduced and anoutlet 120 through which fluid is discharged are provided; avalve blade 200 disposed in thevalve housing 100 to open and close theinlet 110; avalve rod 300 connected to thevalve blade 200 and including a connectingprojection 310 protruding from an upper portion thereof; an L-motion block 400 connected to the connectingprojection 310 and includingstroke rollers 410 respectively provided on both lower side surfaces thereof and L-motion rollers 420 respectively provided on both upper side surfaces thereof; adriving block 500 connected to the L-motion block 400 and including opening and closingdriving guide grooves 510 respectively defined in both side surfaces thereof so that the L-motion rollers 420 are respectively inserted therein to vertically move; aspring pin 600 provided on one surface of thedriving block 500; anelastic member 700 provided between thespring pin 600 and each of the L-motion rollers 420; aguide housing 800 coupled to an upper portion of thevalve housing 100 and including strokeroller rail grooves 810 recessed so that thestroke rollers 410 are respectively inserted therein and defined in both inner side surfaces thereof; acylinder 900 detachably coupled to an upper portion of theguide housing 800; apiston 910 protruding to be connected to thedriving block 500 while maintaining a sealing between the inside and the outside of thecylinder 900 and vertically moving by hydraulic pressure. - In an embodiment, each of the
stroke rollers 410 is more biased to a closing direction C than the L-motion roller 420. - In an embodiment, when each of the opening and closing
driving guide grooves 510 has a protrudinggroove section 511 protruding to the closing direction C, and the L-motion roller 420 is disposed in the protrudinggroove section 511, thevalve blade 200 is inclined to an opening direction O with respect to thestroke roller 410. - In an embodiment, when a first
inclined groove section 512 inclined to the opening direction O as upward from the protrudinggroove section 511 is provided, and the L-motion roller 420 is disposed at anend 512 a of the firstinclined groove section 512, thevalve blade 200 moves to the closing direction C with respect to thestroke roller 410 to close theinlet 110. - In an embodiment, when a second
inclined groove section 513 inclined to the opening direction O as downward from the protrudinggroove section 511 is provided, and the L-motion roller 420 is disposed at anend 513 a of the secondinclined groove section 513, thevalve blade 200 moves to the closing direction C with respect to thestroke roller 410 to closely contact an inner surface (102) of the housing (100). - According to the present invention, the present invention is derived to resolve the above-described problems and it is an object of the present invention is to provide the vacuum valve, Here, as the opening and closing driving guide groove including the protruding groove section and the first and second inclined groove sections is defined in each of the both side surfaces of the driving block, and the L-motion roller inserted into and moving along the opening and closing driving guide groove is provided on the L-motion block, when the L-motion roller is disposed at the end of the first inclined groove section, one side surface of the valve blade closes the inlet, and when the L-motion roller is disposed at the end of the second inclined groove section, one side surface of the valve blade closely contacts the inner surface of the housing. Accordingly, the packing ring provided on a closing surface of the valve blade is fundamentally blocked from contacting air or fluid, and thus the product performance of the packing ring is improved to extend the replacement period of the packing ring.
-
FIG. 1 is a perspective view illustrating an overall appearance of a vacuum valve according to a preferred embodiment of the present invention. -
FIG. 2 is a coupling state view illustrating a state in which components provided in a guide housing in a configuration of the vacuum valve according to the preferred embodiment of the present invention are coupled. -
FIG. 3 is an exploded perspective view illustrating a state in which the vacuum valve according to the preferred embodiment of the present invention is exploded. -
FIG. 4 is a coupling state view illustrating a state in which components provided in the guide housing in the configuration of the vacuum valve according to the preferred embodiment of the present invention are coupled. -
FIG. 5 is a plan view illustrating a driving block in the configuration of the vacuum valve according to the preferred embodiment of the present invention is closed. -
FIGS. 6 and 7 are operation state views illustrating a state in which the inlet among the configuration of the vacuum valve according to the preferred embodiment of the present invention is being closed. -
FIGS. 8 and 9 are operation state views illustrating a state in which the inlet among the configuration of the vacuum valve according to the preferred embodiment of the present invention is being opened. -
FIG. 10 is an exploded perspective view illustrating a state in which a valve housing and a valve blade clean guider in the configuration of the vacuum valve according to the preferred embodiment of the present invention are being coupled. -
FIG. 11 is a partial cross-sectional view illustrating a cross-section of the valve housing and the valve blade clean guider in the configuration of the vacuum valve according to the preferred embodiment of the present invention. - Hereinafter, a
vacuum valve 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. It is also noted that like reference numerals denote like elements or like components throughout the drawings. Moreover, detailed descriptions related to well-known functions or configurations will be ruled out in order not to unnecessarily obscure subject matters of the present invention. - As illustrated in
FIG. 2 or 3 , the present invention includes avalve housing 100, avalve blade 200, avalve rod 300, an L-motion block 400, adriving block 500, aguide housing 800, and acylinder 900. - Before describing the present invention, as illustrated in
FIGS. 2, 4, 6, 7, 8, and 9 , it is noted that a front portion or a side portion of theguide housing 800 is not illustrated so that configurations of abellows 320, the L-motion block 400, and thedriving block 500, which are elements disposed therein, are clearly understood. In addition, as illustrated inFIGS. 5, 6, 7, 8, and 9 , shapes of thevalve housing 100, thebellows 320, thedriving block 500, and thecylinder 900 are expressed as dotted lines to clearly express an operation state of the present invention. - Also, as illustrated in
FIGS. 4, 6, 7, 8, and 9 , it is noted that a left side of the drawing is set as a closing direction C, and a right side thereof is set as an opening direction O. - First, the
valve housing 100 will be described. As illustrated inFIG. 1 or 3 , thevalve housing 100 is disposed between a processing chamber (not shown) and a vacuum pump (not shown) and on which aninlet 110 through which fluid is introduced and anoutlet 120 through which fluid is discharged are provided. - Next, the
valve blade 200 will be described. As illustrated inFIG. 3 or 4 , thevalve blade 200 is disposed in afluid flow hole 101 to open and close theinlet 110. According to vertical movement of apiston 910 that will be described later, as aclosing surface 201 of thevalve blade 200 closely contacts a valve sheet 111 provided around an end of theinlet 110, thevalve blade 200 may close or open theinlet 110. - According to the present invention, as the
valve blade 200 is configured such that theclosing surface 201 of thevalve blade 200 closely contacts aninner surface 102 of thevalve housing 100 while theinlet 110 is opened, apacking ring 210 provided on theclosing surface 201 may not be exposed on thefluid flow hole 101 to increase tightness of sealing, thereby fundamentally blocking thepacking ring 210 from contacting air and fluid. - Next, the
valve rod 300 will be described. As illustrated inFIG. 3 , thevalve rod 300 having an upper portion on which a connectingprojection 310 is provided to be connected to the L-motion block 400 that will be described later and a lower portion coupled to thevalve blade 200. Thevalve rod 300 may vertically and horizontally move according to a position of an L-motion roller 420 of the L-motion block 400, which will be described later, seated on an opening and closingdriving guide groove 510 of thedriving block 500 that will be described later. - Meanwhile, as illustrated in
FIG. 2 or 3 , thebellows 320 maintaining air-tightness and surrounding thevalve rod 300 may be provided between thevalve housing 100 and the L-motion block 400 to guide the vertical movement of the L-motion block 400. - Also, as the
bellows 320 serves to separate thevalve rod 300 from theguide housing 800 that will be described later, when theinlet 110 is opened, air and fluid are blocked from being introduced into theguide housing 800 through theinlet 110. - Next, the L-
motion block 400 will be described. As illustrated inFIG. 2 or 3 , the L-motion block 400 has a reverse T shape having a lower portion coupled to thevalve rod 300 and an upper portion connected to thedriving block 500. The L-motion block 400 includes astroke roller 410 and an L-motion roller 420. - The
stroke roller 410 is rotatably installed on both lower side surfaces of the L-motion block 400 and guides the vertical movement of the L-motion block 400 during an operation process of the present invention. - Meanwhile, according to the present invention, the
stroke roller 410 is more biased to the closing direction C than the L-motion roller 420. As illustrated inFIGS. 6 to 9 , when the L-motion roller 420 is disposed in aprotruding groove section 511 protruding to the closing direction C, which will be described later, thevalve rod 300 is inclined, and when the L-motion roller 420 is disposed on each ofends inclined groove sections valve rod 300 vertically stands, thestroke roller 410 may serve to smoothly perform an opening and closing operation of theinlet 110 and a closely contacting operation of theinner surface 102 of thevalve housing 100. - Also, when the L-
motion block 400 horizontally moves according to a position of the L-motion roller 420 moving by seating on the opening and closingdriving guide groove 510, thestroke roller 410 may serve as a central shaft preventing a lower portion of the L-motion block 400 from horizontally moving by a strokeroller rail groove 810 of theguide housing 800, which will be described later and into which thestroke roller 410 is inserted, and allow only an upper portion of the L-motion block 400 to horizontally move. - The L-
motion roller 420 is rotatably installed on both upper side surfaces of the L-motion block 400. The L-motion roller 420 is seated on the opening and closing drivingguide groove 510 and allows thevalve rod 300 to move in the closing direction C or the opening direction O according to a position of the vertical movement thereof. - Next, the driving
block 500 will be described. As illustrated inFIG. 2 or 3 , the drivingblock 500 has an inside into which the upper portion of the L-motion block 400 is inserted and an upper portion connected to thepiston 910. The drivingblock 500 includes the opening andclosing driving groove 510 and aguide roller 520. - As illustrated in
FIG. 5 , the opening andclosing driving groove 510 is defined in each of both sides of the drivingblock 500 and in which the L-motion roller 420 is seated. The opening andclosing driving groove 510 includes a protrudinggroove section 511, a firstinclined groove section 512, and a secondinclined groove section 512. - As illustrated in
FIG. 5 , the protrudinggroove section 511 protrudes to the closing direction C. When the L-motion roller 420 is disposed in the protrudinggroove section 511, thevalve blade 200 may maintain a state inclined to the opening direction O with respect to thestroke roller 410. - As illustrated in
FIG. 5 , the firstinclined groove section 512 is gradually inclined to the opening direction O as upward from the protrudinggroove section 511. When the L-motion roller 420 is disposed at anend 512 a of the firstinclined groove section 512, thevalve blade 200 may move to the closing direction C with respect to thestroke roller 410 to close theinlet 110. - As illustrated in
FIG. 5 , the secondinclined groove section 513 is gradually inclined to the opening direction O as downward from the protrudinggroove section 511. When the L-motion roller 420 is disposed at anend 513 a of the secondinclined groove section 513, thevalve blade 200 may move to the closing direction C with respect to thestroke roller 410 to closely contact theinner surface 102 of thehousing 100. - Meanwhile, according to the present invention, the
guide roller 520 is rotatably installed on each of both upper side surfaces of the drivingblock 500. For smooth operation, two ormore guide rollers 520 are desirably provided so that the drivingblock 500 only vertically operates and does not horizontally move. - Also, as the
guide roller 520 is provided on a position at which theguide roller 520 is not interfered by the opening and closing drivingguide groove 510, theguide roller 520 may guide vertical movement of the drivingblock 500 during the operation process of the present invention. - Meanwhile, as illustrated in
FIG. 3 or 4 , anelastic member 700 providing elastic force is desirably disposed between thestroke roller 410 seated on the opening and closing drivingguide groove 510 and aspring pin 600 disposed on one surface of the drivingblock 500. - According to the present invention, when the
valve rod 200 vertically moves to open and close theinlet 110 in an operation process of thevacuum valve 1, theelastic member 700 serves to maintain a state in which the L-motion roller 420 is inserted into the protrudinggroove section 511 until thestroke roller 410 moves along the strokeroller rail groove 810 by the vertical movement of thepiston 910 and reached to alower end 810 a or anupper end 810 b of the stroke roller rail groove to complete the vertical movement of the L-motion block 400. - Also, as illustrated in
FIG. 7D , theelastic member 700 allows the drivingblock 500 to vertically move so that the L-motion roller 420 is disposed on theend 512 a of the firstinclined groove section 512 or theend 513 a of the secondinclined groove section 513 while elastically deformed due to pressure of thepiston 910 that continuously and vertically moves even after thestroke roller 410 is reached to thelower end 810 a or theupper end 810 b of the strokeroller rail groove 810. Thus, theelastic member 700 may help the smooth operation of present invention, appropriately to the intention of the present invention. - Next, the
guide housing 800 will be described. As illustrated inFIG. 3 , theguide housing 800 is coupled to the upper portion of thevalve housing 100 to protect and accommodate driving elements such as the L-motion block 400 and the drivingblock 500. A strokeroller rail groove 810 recessed so that thestroke roller 410 is inserted to move therein and a guideroller rail groove 820 recessed so that the guide roller 52 is inserted to move therein are defined in both inner surfaces of theguide housing 800, respectively. - Next, the
cylinder 900 will be described. As illustrated inFIG. 3 , thecylinder 900 is coupled to the upper portion of theguide housing 800. Thecylinder 900 is connected to thedriving block 500 protruding to be connected to thedriving block 500 while maintaining sealing between the inside and the outside of thecylinder 900 and includes thepiston 910 vertically moving by hydraulic pressure. - Since a principle of configuring and operating the
cylinder 900 is well known to those skilled in the art, detailed description regarding this will be omitted. - Hereinafter, referring to
FIGS. 6 to 9 , an operation state of thevacuum valve 1 according to a preferred embodiment of the present invention will be described. -
FIGS. 6 and 7 are operation state views illustrating a state in which theinlet 110 in the configuration of thevacuum valve 1 according to the preferred embodiment of the present invention is being closed, andFIGS. 8 and 9 are operation state views illustrating a state in which theinlet 110 in the configuration of thevacuum valve 1 according to the preferred embodiment of the present invention is being opened. - Referring to
FIGS. 8 and 9 , a process in which theinlet 110 is opened and thevalve blade 200 closely contacts theinner surface 102 of thevalve housing 100, which is a characteristic of the present invention, will be described. - First, as illustrated in
FIG. 8A , when descending of thepiston 910 is finished, theinlet 110 maintains a closing state in which theclosing surface 201 of thevalve blade 200 closely contacts the valve sheet 11 provided around the end side of theinlet 110. - In this case, the
stroke roller 410 is disposed on thelower end 810 a of the strokeroller rail groove 810, the L-motion roller L-motion roller 420 is disposed on theend 512 a of the firstinclined groove section 512, and theelastic member 700 connected between the L-motion roller 420 and thespring pin 600 maintains a downward tensile state. - Also, the
bellows 320 is compressed because the descending of thepiston 910 is completed. - In the above-described state, as tensile force of the
elastic member 700 is released when thepiston 910 ascends, the drivingblock 500 ascends to move the L-motion roller 420 from theend 512 a of the firstinclined groove section 512 to the protrudinggroove section 511. - As illustrated in
FIG. 8B , while the L-motion roller 420 moves from the firstinclined groove section 512 to the protrudinggroove section 511, thevalve rod 300 horizontally moves to the opening direction O with respect to thestroke roller 410 and is changed from a standing state to an inclined state, and at the same time, as thevalve blade 200 closely contacting the valve sheet 111 horizontally moves together with thevalve rod 300, theinlet 110 is opened. - In the above-described state, as illustrated in
FIG. 9C , when thepiston 910 continues to ascend, while the L-motion roller 420 is seated on the protrudinggroove section 511, thebellows 320 is restored from a compressed state to an original sate, and thevalve rod 300, the L-motion block 400, and the drivingblock 500 ascends. - As the
valve rod 300 ascends, thevalve blade 200 is deviated from a horizontal path of theinlet 110 and theoutlet 120 and disposed on an upper portion of thefluid flow hole 101, and thus theinlet 110 is completely opened. - Meanwhile, when the
piston 910 continues to ascend, thestroke roller 410 is disposed on theupper end 810 a of thestroke rail groove 810. When thepiston 910 continues to ascend in a state in which thestroke roller 410 is disposed on theupper end 810 a of thestroke rail groove 810, the drivingblock 500 ascends to move the L-motion roller 420 from the protrudinggroove section 511 to the secondinclined groove section 513. Theelastic member 700 connected between the L-motion roller 420 and thespring pin 600 maintains an upward tensile state due to the ascending of the drivingblock 500. - As illustrated in
FIG. 9d , while the L-motion roller 420 moves from the protrudinggroove section 511 to the secondinclined groove section 513, thevalve rod 300 horizontally moves to the closing direction C with respect to thestroke roller 410 and is changed from the inclined state to the standing state, and at the same time, as the L-motion roller 420 horizontally moves together with thevalve rod 300 at a position deviated from the horizontal path of theinlet 110 and theoutlet 120, theclosing surface 201 of thevalve blade 200 and theinner surface 102 of thevalve housing 100 closely contact each other. - Due to the above-described state, as sealing of the
packing ring 210 provided on theclosing surface 201 of thevalve blade 200 is maintained, thepacking ring 210 may be fundamentally prevented from contacting the air and the fluid to improve product performance of thepacking ring 210 and extend a replacement period of thepacking ring 210. - Meanwhile, as illustrated in
FIG. 6 or 7 , a process of closing theinlet 110 is performed in a reverse order of the above-described process of opening theinlet 110. - Meanwhile, as illustrated in
FIG. 10 or 11 , thecoupling hole 130 perforated in a side surface, in which theinlet 110 is defined, of thevalve housing 100 is provided, and the valve bladeclean guider 1000 coupled to thecoupling hole 130 is provided. - Due to this, when a purified gas is injected in a state in which the
closing surface 201 of thevalve blade 200 closely contacts theinner surface 102 of thevalve housing 100, as the purified gas removes process by-products existing on theclosing surface 201 of thevalve blade 200 while passing therethrough, thevalve blade 200 and thepacking ring 210 may extend in product lifecycle. - Optimized embodiments are disclosed in the drawings and the specification. While specific terms were used, they were not used to limit the meaning or the scope of the present invention described in claims, but merely used to explain the present invention. Accordingly, a person having ordinary skill in the art will understand from the above that various modifications and other equivalent embodiments are also possible. Hence, the real protective scope of the present invention shall be determined by the technical scope of the accompanying claims.
Claims (6)
1. A vacuum valve comprising:
a valve housing comprising a fluid flow hole defined therein and on which an inlet through which fluid is introduced and an outlet through which fluid is discharged are provided;
a valve blade disposed in the valve housing to open and close the inlet;
a valve rod connected to the valve blade and comprising a connecting projection protruding from an upper portion thereof;
an L-motion block connected to the connecting projection and comprising stroke rollers respectively provided on both lower side surfaces thereof and L-motion rollers respectively provided on both upper side surfaces thereof;
a driving block connected to the L-motion block and comprising opening and closing driving guide grooves respectively defined in both side surfaces thereof so that the L-motion rollers are respectively inserted into the opening and closing driving guide grooves to vertically move;
a spring pin provided on one surface of the driving block;
an elastic member provided between the spring pin and each of the L-motion rollers;
a guide housing coupled to an upper portion of the valve housing and comprising stroke roller rail grooves recessed so that the stroke rollers are respectively inserted therein and defined in both inner side surfaces thereof;
a cylinder detachably coupled to an upper portion of the guide housing;
a piston protruding to be connected to the driving block while maintaining a sealing between the inside and the outside of the cylinder and vertically moving by hydraulic pressure.
2. The vacuum valve of claim 1 , wherein each of the stroke rollers is more biased to a closing direction than the L-motion roller.
3. The vacuum valve of claim 2 , wherein when each of the opening and closing driving guide grooves has a protruding groove section protruding to the closing direction, and the L-motion roller is disposed in the protruding groove section, the valve blade is inclined to an opening direction with respect to the stroke roller.
4. The vacuum valve of claim 3 , wherein when a first inclined groove section inclined to the opening direction as upward from the protruding groove section is provided, and the L-motion roller is disposed at an end of the first inclined groove section, the valve blade moves to the closing direction with respect to the stroke roller to close the inlet.
5. The vacuum valve of claim 4 , wherein when a second inclined groove section inclined to the opening direction as downward from the protruding groove section is provided, and the L-motion roller is disposed at an end of the second inclined groove section, the valve blade moves to the closing direction with respect to the stroke roller to closely contact an inner surface of the housing.
6. The vacuum valve of claim 1 , wherein a coupling hole perforated in a side surface, on which the inlet is provided, of the valve housing is provided, and a valve blade clean guider coupled to the coupling hole and having a gas flow hole through which a purified gas flows to remove process by-products existing on a closing surface of the valve blade is provided.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140165234A KR101725249B1 (en) | 2014-11-25 | 2014-11-25 | Vacuum valves |
KR10-2014-0165234 | 2014-11-25 | ||
PCT/KR2015/009695 WO2016085100A1 (en) | 2014-11-25 | 2015-09-16 | Vacuum valve |
Publications (2)
Publication Number | Publication Date |
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US20170268680A1 true US20170268680A1 (en) | 2017-09-21 |
US10132414B2 US10132414B2 (en) | 2018-11-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US15/528,851 Active US10132414B2 (en) | 2014-11-25 | 2015-09-16 | Vacuum valve |
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US (1) | US10132414B2 (en) |
JP (1) | JP6580137B2 (en) |
KR (1) | KR101725249B1 (en) |
CN (1) | CN107002890B (en) |
WO (1) | WO2016085100A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3492790A1 (en) * | 2017-12-04 | 2019-06-05 | King Lai Hygienic Materials Co., Ltd. | Spring free gate valve |
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CN109555869A (en) * | 2017-09-25 | 2019-04-02 | 新莱应材科技有限公司 | Without spring gate valve |
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US7637477B2 (en) * | 2004-12-17 | 2009-12-29 | Tokyo Electron Limited | Gate valve apparatus of vacuum processing system |
US8474791B2 (en) * | 2010-09-22 | 2013-07-02 | Smc Kabushiki Kaisha | Gate valve |
WO2013151403A1 (en) * | 2012-04-06 | 2013-10-10 | 프리시스 주식회사 | Gate valve 게이트 밸브 |
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JP2657778B2 (en) | 1994-10-31 | 1997-09-24 | 株式会社岸川特殊バルブ | Gate valve |
JP4169892B2 (en) | 1999-12-03 | 2008-10-22 | 株式会社アルバック | Gate valve |
US7100892B2 (en) * | 2003-08-26 | 2006-09-05 | Kitz Sct Corporation | Non-rubbing gate valve for semiconductor fabrication apparatus |
CN202484328U (en) * | 2012-01-06 | 2012-10-10 | 肇庆市振华真空机械有限公司 | Vacuum gate valve |
US8973847B2 (en) | 2012-07-09 | 2015-03-10 | Easy Spray Llc | Non-aerosol liquid spray device with continuous spray |
US9086172B2 (en) * | 2012-07-19 | 2015-07-21 | Vat Holding Ag | Vacuum valve |
KR101236013B1 (en) * | 2012-08-01 | 2013-02-21 | 선동수 | Apparatus for opening and closing of vacuum chamber |
CN103016766B (en) * | 2012-12-28 | 2016-04-27 | 兰州高压阀门有限公司 | Special valve for carbonyl metallurgy technology |
KR101431661B1 (en) | 2013-05-24 | 2014-08-22 | 주식회사 에스알티 | Wing Blade Gate Valve |
-
2014
- 2014-11-25 KR KR1020140165234A patent/KR101725249B1/en active IP Right Grant
-
2015
- 2015-09-16 CN CN201580063224.XA patent/CN107002890B/en active Active
- 2015-09-16 WO PCT/KR2015/009695 patent/WO2016085100A1/en active Application Filing
- 2015-09-16 JP JP2017527606A patent/JP6580137B2/en active Active
- 2015-09-16 US US15/528,851 patent/US10132414B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7637477B2 (en) * | 2004-12-17 | 2009-12-29 | Tokyo Electron Limited | Gate valve apparatus of vacuum processing system |
US8474791B2 (en) * | 2010-09-22 | 2013-07-02 | Smc Kabushiki Kaisha | Gate valve |
US8800956B2 (en) * | 2011-11-04 | 2014-08-12 | Smc Corporation | Non-sliding gate valve |
WO2013151403A1 (en) * | 2012-04-06 | 2013-10-10 | 프리시스 주식회사 | Gate valve 게이트 밸브 |
Cited By (1)
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EP3492790A1 (en) * | 2017-12-04 | 2019-06-05 | King Lai Hygienic Materials Co., Ltd. | Spring free gate valve |
Also Published As
Publication number | Publication date |
---|---|
CN107002890B (en) | 2019-04-05 |
KR101725249B1 (en) | 2017-04-27 |
KR20160062789A (en) | 2016-06-03 |
WO2016085100A1 (en) | 2016-06-02 |
JP2017536518A (en) | 2017-12-07 |
JP6580137B2 (en) | 2019-09-25 |
CN107002890A (en) | 2017-08-01 |
US10132414B2 (en) | 2018-11-20 |
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